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View article: Biometric and physiological responses of Virola Surinamensis to cadmium and biochar in amazonian soil
Biometric and physiological responses of Virola Surinamensis to cadmium and biochar in amazonian soil Open
The intensification of human activity, industrialization and urbanization has increased the risk of pollution due to large quantities of waste rich in heavy metals. Objective of this study was to assess the mitigating effects of biochar de…
View article: Efeitos da inoculação com Azospirillum brasilense em variedades de milho: crescimento e metabolismo do nitrogênio
Efeitos da inoculação com Azospirillum brasilense em variedades de milho: crescimento e metabolismo do nitrogênio Open
O Brasil é o terceiro maior produtor de milho, ficando atrás dos Estados Unidos e China, com 101 milhões de toneladas. Devido à alta exigência da cultura por nitrogênio, este macronutriente se tornou essencial para elevar a produtividade d…
View article: Evaluation of the genes CYP 85 A 2 , BZR1, and CAD1 in the attenuation of cadmium in seedlings of the species Schizolobium parahyba var. amazonicum (Huber ex Ducke) Barneby (PARICÁ) under different concentrations of 24- epibrassinolide
Evaluation of the genes CYP 85 A 2 , BZR1, and CAD1 in the attenuation of cadmium in seedlings of the species Schizolobium parahyba var. amazonicum (Huber ex Ducke) Barneby (PARICÁ) under different concentrations of 24- epibrassinolide Open
The Amazonian species paricá (Schizolobium parahyba var. amazonicum (Huber ex Ducke) Barneby) accumulates cadmium (Cd) primarily in the roots, but the lack of understanding of gene modulation in response to this metal and the phytohormonal…
View article: Biometric and physiological responses of Virola Surinamensis to cadmium and biochar in amazonian soil
Biometric and physiological responses of Virola Surinamensis to cadmium and biochar in amazonian soil Open
Objective of this study was to assess the mitigating effects of biochar derived from açaí seeds on the biometric and physiological responses of Virola surinamensis plants grown in soil contaminated with cadmium. Experiment was conducted in…
View article: Biochar improves growth and physiology of Swietenia macrophylla king in contaminated soil by copper
Biochar improves growth and physiology of Swietenia macrophylla king in contaminated soil by copper Open
The production of açaí seed waste from the commercial and extractive exploitation of the Euterpe oleraceae palm tree is a serious problem that contributes to environmental contamination and production of greenhouse gases, a fact that sugge…
View article: Use of biochar and pyroligneous extract in agriculture
Use of biochar and pyroligneous extract in agriculture Open
Brazil is the world leader in the production of charcoal, however, this process generates byproducts that, if not managed correctly, cause adverse environmental impacts. One of these by-products is pyroligneous liquor, derived from the car…
View article: Nitric Oxide as an Attenuator of Copper Toxicity in the concentration of Nutrients in maize Seedlings
Nitric Oxide as an Attenuator of Copper Toxicity in the concentration of Nutrients in maize Seedlings Open
The maize crop is highlighted in the worldwide and Brazilian agribusiness, presenting itself as a raw material for both human and animal nutrition. Nitric oxide (NO) stands out as a signalling molecule playing a crucial role in plant respo…
View article: Análise de trilha da influência do cádmio no mogno
Análise de trilha da influência do cádmio no mogno Open
O mogno africano (Khaya grandifoliola) é uma espécie arbórea que vem ganhando espaço no mercado florestal, apresentando utilidade nas mais diversas utilizações, principalmente em território brasileiro, onde é o principal substituto da made…
View article: Growth and metabolic functions of Schizolobium amazonicum subjected to nickel doses
Growth and metabolic functions of Schizolobium amazonicum subjected to nickel doses Open
Anthropic activities such as industries, agriculture and mining has generated public concern for its numerous irregular disposals of its waste, the incorrect deposition of heavy metals such as nickel (Ni) has caused the degradation and con…
View article: Effect of salicylic acid on cowpea seedlings under saline stress
Effect of salicylic acid on cowpea seedlings under saline stress Open
The aim of this work was applying salicylic acid (SA) in cowpea seedlings under saline stress. The experiment took place in the seed laboratory of the Universidade Federal Rural da Amazônia with a completely randomized experimental design …
View article: The effect of aluminum treatment on metabolism in oil palm seedlings
The effect of aluminum treatment on metabolism in oil palm seedlings Open
Due to rainfall and high temperatures, the Amazonian soil undergoes changes in its source material and leaching of base cations. This results in deep, infertile, and acidic soil. Aluminum present in acidic soil impairs plant growth and dev…
View article: Nitrogen and carbon metabolism evaluation in paricá plants subjected to different cadmium concentrations
Nitrogen and carbon metabolism evaluation in paricá plants subjected to different cadmium concentrations Open
The development of anthropogenic activities such as industry, mining, agriculture, urban waste discard has been, the main actions that result in increased contamination by heavy metals in soil, water and air. One of the most harmful metals…
View article: Variações morfoanatômicas de espécimes de Pectis elongata Kunth
Variações morfoanatômicas de espécimes de Pectis elongata Kunth Open
Espécimes de Pectis elongata Kunth apresentam variações de aromas quando maceradas, alguns acessos apresentam aroma de cominho(PCH), enquanto outros apresentam aroma de capim-santo(PCS). O objetivo deste trabalho foi avaliar as variações m…
View article: Nitric Oxide as an Attenuator of Ecophysiological Changes in Corn (Zea mays L.) Plants Submitted to Copper Toxicity
Nitric Oxide as an Attenuator of Ecophysiological Changes in Corn (Zea mays L.) Plants Submitted to Copper Toxicity Open
The aim of this work was to evaluate the attenuating effect of the nitric oxide donor (sodium nitroprusside-NPS) on the ecophysiological responses of corn plants (Zea mays L.) submitted to copper toxicity. The corn seeds of the K9606 VIP3 …
View article: Nitric oxide as a way to mitigate copper (Cu) toxicity in the emergence and initial growth of maize seedling (Zea mays L.)
Nitric oxide as a way to mitigate copper (Cu) toxicity in the emergence and initial growth of maize seedling (Zea mays L.) Open
The aim of this study is to assess the effect of sodium nitroprusside-NPS (nitric oxide donor) on the emergence and initial growth of maize seedlings (Zea mays L.) subjected to different copper concentrations. The study followed a complete…
View article: Carbon and nitrogen metabolism in young Tachigali vulgaris plants subjected to water deficit
Carbon and nitrogen metabolism in young Tachigali vulgaris plants subjected to water deficit Open
Plants’ biochemical responses to water deficit are associated with their ability to synthesize accumulate osmolytes compatible to regulatory properties of water potential. The aim of the current study is to evaluate carbon and nitrogen met…
View article: Effect of brassinoesteroid hormone on oxidants activity of two contrasting cowpea cultivars subjected to saline stress
Effect of brassinoesteroid hormone on oxidants activity of two contrasting cowpea cultivars subjected to saline stress Open
The aims of this study were to study the biochemical metabolism alterations generated by saline stress in two cowpea cultivars: BRS Guariba (moderately tolerant) and BR3 Tracuateua (sensitive), and to investigate the action of brassinoster…
View article: The effect of silicon (Si) on the growth and nutritional status of Schizolobium amazonicum seedlings subjected to zinc toxicity
The effect of silicon (Si) on the growth and nutritional status of Schizolobium amazonicum seedlings subjected to zinc toxicity Open
Zinc is an essential element to plants. However, excessive zinc levels can severely damage them. Schizolobium amazonicum is an Amazon native species that presents desirable features to remediate environments contaminated with heavy metals.…
View article: Effect of indol-3-butiric acid (IBA) on rooting of cuttings of Schizolobium parahyba var. amazonicum (Huber ex Ducke) Barneby
Effect of indol-3-butiric acid (IBA) on rooting of cuttings of Schizolobium parahyba var. amazonicum (Huber ex Ducke) Barneby Open
The propagation of S. amazonicum by seeds can result in uneven seedlings that are subject to poor quality, which is detrimental to uniformity and productivity. The absence of an efficient method of vegetative propagation of the species may…
View article: Biochemical metabolism of two cultivars of cowpea treated with 24-Epibrassinolide and subjected to saline stress
Biochemical metabolism of two cultivars of cowpea treated with 24-Epibrassinolide and subjected to saline stress Open
We aimed to evaluate the changes in biochemical metabolism generated by salt stress and to investigate the effect of brassinosteroids in mitigating of this stress on two cultivars of Vigna unguiculata L. We used a completely randomized exp…
View article: Corn Hybrids Response to Nitrogen Rates at Multiple Locations in Brazilian Amazon
Corn Hybrids Response to Nitrogen Rates at Multiple Locations in Brazilian Amazon Open
Among the nutritional requirements of corn crop, nitrogen (N) is the element required in greater quantity and, directly responsible for increase or decrease in grain production. The aims of study were to evaluate the effects of applied N r…
View article: Enzymatic and Non-enzymatic Antioxidant System in Young Plants of Tachigali vulgaris Submitted to Drought
Enzymatic and Non-enzymatic Antioxidant System in Young Plants of Tachigali vulgaris Submitted to Drought Open
Tachigali vulgaris is a pioneer species, colonizing marginal lands and roadsides, often initiates secondary succession in open areas by the intense germination of their seeds in the soil. The main components of the antioxidant defense syst…
View article: Ecophysiological aspects of Tachigali vulgaris seedlings using different sources and doses of nitrogen
Ecophysiological aspects of Tachigali vulgaris seedlings using different sources and doses of nitrogen Open
This study aimed to evaluate the effects of sources and increasing doses of nitrogen on growth and gas exchange in plants of Tachigali vulgaris.The experiment was conducted in a greenhouse in the period from April to July 2015.The experime…
View article: Antioxidant Enzymes Activity in the Elaeis guineensis Jacq. Submitted to Drought
Antioxidant Enzymes Activity in the Elaeis guineensis Jacq. Submitted to Drought Open
Oil palm is a very responsive culture in relation to climate change that intensifies or lowers its productivity. Thus, the objective of this study is to evaluate the activity of antioxidant enzymes in two genotypes of E. guineensis, both u…
View article: Growth and gas exchange of Tachigali vulgaris submitted to water deficiency
Growth and gas exchange of Tachigali vulgaris submitted to water deficiency Open
Tachigali vulgaris L.G. Silva & H.C. Lima is a pioneer species, colonizer of marginal lands and road margins, which often initiates secondary succession in open areas by the intense germination of their seeds in the soil. Studies on fast-g…
View article: Nitrogen Metabolism, Carbohydrates and Sucrose in Young Plants of Paricá (<i>Schizolobium amazonicum</i>) Submitted to Different Dosages of Aluminum
Nitrogen Metabolism, Carbohydrates and Sucrose in Young Plants of Paricá (<i>Schizolobium amazonicum</i>) Submitted to Different Dosages of Aluminum Open
The paricá [Schizolobium amazonicum Huber ex Ducke] is a native species of the Amazon region, belonging to the Fabaceae family and is a legume that has great social and economic importance, raw material for the manufacture of wood panels. …
View article: Biochemical response of Tachi-branco (Tachigali vulgaris L.G. Silva & H.C. Lima) in function of sources and doses of nitrogen
Biochemical response of Tachi-branco (Tachigali vulgaris L.G. Silva & H.C. Lima) in function of sources and doses of nitrogen Open
This study aimed to evaluate the effects of application of nitrogen sources and doses in the biochemical response of seedlings of Tachigali vulgaris L. G. Silva & H. C. Lima.The seedlings were grown in pots containing 3 dm 3 of soil.Nitrog…
View article: ANÁLISE DO CONTEÚDO RELATIVO DE ÁGUA E ENZIMAS ANTIOXIDANTES NAS ESPÉCIES BACABA E BACABI COM DEFICIÊNCIA HÍDRICA
ANÁLISE DO CONTEÚDO RELATIVO DE ÁGUA E ENZIMAS ANTIOXIDANTES NAS ESPÉCIES BACABA E BACABI COM DEFICIÊNCIA HÍDRICA Open
View article: COMPOSTOS FOTOSSINTÉTICOS E CARBOIDRATOS SOLÚVEIS TOTAIS EM PLANTAS JOVENS DE PARICÁ ACOMETIDAS A DIFERENTES DOSAGENS DE ALUMÍNIO
COMPOSTOS FOTOSSINTÉTICOS E CARBOIDRATOS SOLÚVEIS TOTAIS EM PLANTAS JOVENS DE PARICÁ ACOMETIDAS A DIFERENTES DOSAGENS DE ALUMÍNIO Open